add CommandManager

src/app/editor/system/command_manager.h

@@ -0,0 +1,35 @@
+#ifndef YAZE_APP_EDITOR_SYSTEM_COMMAND_MANAGER_H
+#define YAZE_APP_EDITOR_SYSTEM_COMMAND_MANAGER_H
+
+#include <string>
+#include <unordered_map>
+
+namespace yaze {
+namespace app {
+namespace editor {
+
+class Command {
+ public:
+  virtual ~Command() = default;
+  virtual void Execute() = 0;
+};
+
+class CommandManager {
+ public:
+  void RegisterCommand(const std::string& shortcut, Command* command) {
+    commands_[shortcut] = command;
+  }
+
+  void ExecuteCommand(const std::string& shortcut) {
+    if (commands_.find(shortcut) != commands_.end()) {
+      commands_[shortcut]->Execute();
+    }
+  }
+
+ private:
+  std::unordered_map<std::string, Command*> commands_;
+};
+
+}  // namespace editor
+}  // namespace app
+}  // namespace yaze